I found their location today. Hwy 91, 1/2 mile southwest of the US 31 intersection. They are broadcasting from a Catholic business, with the antenna approx 15' off the ground mounted to the sign of the business. They are currently running a repeating CD of a sermon questioning the "Once Saved, Always Saved" concept.
I was given a "tour" of the studio, which is a CD player connected to an audio processor. The "manager" asked me why did his signal improve when he added guy wires, and I explained to him the wires are conductive, and acting like a ground plane of some sorts. I told him if he would purchase some copper wire the length of his antenna and bury them below the ground and connect them to the base of the antenna it would improve the range even further. Overall, very nice people there at the makeshift station.
-Travis